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  Filling transitions on rough surfaces: Inadequacy of Gaussian surface models.

Dufour, R., Semprebon, C., & Herminghaus, S. (2016). Filling transitions on rough surfaces: Inadequacy of Gaussian surface models. Physical Review E, 93(3): 032802. doi:10.1103/PhysRevE.93.032802.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002A-35DC-6 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-24C4-F
Genre: Journal Article

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https://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.032802 (Publisher version)
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 Creators:
Dufour, Renaud1, Author           
Semprebon, Ciro2, Author           
Herminghaus, Stephan1, Author           
Affiliations:
1Group Granular matter and irreversibility, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063306              
2Group Theory of wet random assemblies, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063303              

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 Abstract: We present numerical studies of wetting on various topographic substrates, including random topographies. We find good agreement with recent predictions based on an analytical interface-displacement-type theory, except that we find critical end points within the physical parameter range. As predicted, Gaussian random surfaces are found to behave qualitatively different from non-Gaussian topographies. This shows that Gaussian random processes as models for rough surfaces must be used with great care, if at all, in the context of wetting phenomena.

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Language(s): eng - English
 Dates: 2016-03-172016-03
 Publication Status: Issued
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 Rev. Type: -
 Identifiers: DOI: 10.1103/PhysRevE.93.032802
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Title: Physical Review E
Source Genre: Journal
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Pages: 9 Volume / Issue: 93 (3) Sequence Number: 032802 Start / End Page: - Identifier: ISSN: 1539-3755